Combination guide and weatherstrip for sliding window constructions



May 8, 1956 R, G. BAKER ET AL 2,744,297

COMBINATION GUIDE AND WEATHERSTRIF FOR SLIDING WINDOW CONSTRUCTIONS Filed July 15, 1953 2 Sheets-Sheet l May 8, 1956 R. G. BAKER ET AL COMBINATION GUIDE AND WEAIHERSTRIP FOR sLIDING WINDOW OONsTRucTIONs 2 Sheets-Sheet 2 Filed July 13, 1953 IN VEN TORS @A 7M 0/1/0 6. B14/rfi C7/V f. WM f 7' T @dm MNM/0 COMBINATION GUIDE AND WEATHERSTRIP FOR SLIDING WINDOW CONSTRUCTIONS Raymond G. Baker, Plymouth, and Leon E. Willett, De-

troit, Mich., assignors to Chamberlin Company of America, Detroit, Mich., a corporation of Michigan Application Jury 13, 1953, serial No. 357,436

1o Claims. (ci. zii-52.2)

This invention relates generally to window constructions for buildings and refers more particularly to improvements in a window construction of the type having vertically slidable top and bottom sash members.

It is an object of this invention to provide combined sash guides and wetherstrips for the sash members rendering it possible to readily remove either or both sash members from the window casing and constructed to assure obtaining an effective weatherseal at opposite sides ofl the sash members when the latter are in assembled relationship with the window casing.

It is another object of this invention to provide combined sash guides and weatherstrips constructed to frictionally hold the sash members in any selected open position of the sash members relative to the window casing. c

It vis'a further object of this invention to provide a window construction of the above type having means for adjusting the holding pressure applied to either of the sash members by the combined guides and weatherstrips.

'The' foregoing as well as other objects willv be made more'apparent as this description proceeds, especially when considered in connection with the accompanying drawing, wherein:

Figure 1 is a fragmentary perspective view of a window assembly embodying the features of this invention;

Figure 2 is a cross sectional view through a window assembly constructed in accordance with this invention; Figure 3 is a fragmentary sectionalview taken substantially on the line 3 3 of Figure 2; and

Figure 4 is a cross sectional view showing a modied form of window construction.

Referring rst to the embodiment of the invention shown in Figures l-3 inclusive of the drawing, it will be noted that the numeral designates a double-hung window of the sliding sash type comprising a casing 11, an inner sash 12, and an outer sash 13. Each sash has a -rst vertically extending side bar 14 and a secondvvertically extending side bar 15.A The side bars aforesaid are respectively connected at opposite ends by cross bars (not shown) to provide rectangular frames.

The casing 11 comprises a first jamb 16 positioned adjacent the rst side bars 14 of the sashes and a second jamb 17 positioned adjacent the second side bars 15 of the sashes. Each jamb has a stop 18 secured thereto at the inner side of the inner sash 12 and has a stop 19 secured thereto at the outer side of the sash 13. A parting stop is secured to the laterally inner face of the jamb 16 midway between the stops 18 and 19 by screws 21. A similar parting stop 20 is secured to the laterally inner side of the jamb 17 midway between the stops 1'8 and 19 by screws 21.

In accordance with conventional practice, the sashes are supported within the window casing 11 in side by side relationship for sliding movement in a vertical direction. The opposite sides of the sashes are guided throughout their vertical travel relative to the side jambs 2,744,297 Patented- May 8,A 1956 "ice vimized. sectional contour of the wing part 25 is such that only strip elements 22 and 23 respectively. In the present instance, the combined sash guide and weatherstrips are `formed of spring metal capable of being rolled or otherwise inexpensively fashioned to the cross sectional contour shown in Figure 2 of the drawing.

The element 22 has a laterally outwardly opening channel-shaped portion 24 intermediate opposite side edges thereof and dimensioned to receive the laterally inner edge portion of the parting stop 20. If desired, the base of the channel portion 24 may be secured to the parting stop 20 by the screws 21previously described as operable to attach the parting stop 20 to the jamb 16. The channel-shaped portion 24 is positioned between the side bars 14 of the two sashes and hence may also be considered as a part of the parting stop.

The element 22 also has a flexible wing section 25 which. extends outwardly from the flange of the channel 24 between the jamb 16 and adjacent bar 14 of the sash 13. The outer or free edge of the wing part 25 is turned laterally inwardly to provide a flange 26 and is then turned toward the adjacent stop 19 to provide a ange l27. The flange 27 terminates in a laterally outwardly exthe channel 24 to provide the wing part 25 with an inwardly opening channel-shaped cross section for slidably receiving the adjacent portion of the side bar 14 on the sash 13. In this connection, it will further be noted from Figure 2 of the drawing that the side bar 14 of the sash 13 has a longitudinally extending groove 28 positioned to receive the outer edge of the llexible wing part 25 formed by the flanges 26 and 27.

The flexible wing part 25is spaced laterally inwardly from the jamb 16 and is free to flex toward and away from the jamb 16. In this connection, it is important to note that the flexible wing part has a portion 29 of substantial radius connecting the same to the outer flange of the channel 24. The construction is such that the portion 29 has a rolling contact with the outer surface of the parting stop 20 during flexing of the wing part 25 so that the stress resulting from flexing of the wing part 25 is distributed over a substantial area and the tendency for the metal to break due to fatigue is thereby min- It-is likewise important to note that the cross the flange 27 and outer llange of the channel 24 have any appreciable contact with the side bar 14 of the sash l13 with the result that resistance to vertical movement of the sash 13 is reduced. The wing part 25 is actually biased in a direction to urge the sash 13 toward the jamb 17 and to also urge the side bar 14 of the sash 13 inwardly against the outer flange of the channel 24 in order to assure an effective weatherseal.

The element 22 has a second flexible wing part 30 which extends inwardly from the inner flange of the channel 24 between the jamb 16 and the adjacent side bar 14 of the sash 12,. The inner edge of the wing part 30 is turned laterally inwardly to provide a ange 31 and is then turned in a direction toward the adjacent stop 13 to provide a flange 32. The flange 32 .is turned laterally outwardly to form a terminal liange 33 adjacent the outer surface of the stop 18. The side bar 14 of the sash 12 has a longitudinally extending groove 33 positioned to receive the flanges 31 and 32. The construction is such that the flange 31 cooperates with the inner flange of the channel 24 to impart an inwardly opening channel-shaped cross sec- 3 base of the groove 33 in the latter bar to space the base of the channel from the adjacent surface of the bar 14. Thus, friction between the bar 14 of the sash 12 and the wing part 3@ is materially reduced. Also, the wing part is spaced laterally inwardly from the jamb 16 and is biased to flex in a direction toward the jamb 16.

The extent of flexing movement of the wing part 30 toward the jamb 16 is restricted by a plurality of screws 34 spaced from each other lengthwise of the jamb 16 and having threaded shanlt portions threadably engaging the jamb 16. in addition, the screws 34 have enlarged heads slotted for engagement with a cooperating tool and arranged to abut the latter outer surface of the wing part 30 adjacent the free edge of the latter, The slots in the head portions 35 are accessible for engagement by the tool through openings 36 formed in the wing part 30 in registration with the heads 35 and having a size smaller than the heads 35. By adjusting the screws 34 it is possible to shift the sash 12 relative to the jamb 17 and thereby increase or decrease the force exerted on the sash 12 by the element 23.

The element 23 is identical in construction to the element 22 previously described and the same reference numerals are used to indicate corresponding parts. It is to be noted, however, that the element 23 is installed on the jamb 17 `in a reverse position with respect to the position of the element 22. 1n other words, the side bar 15 of the sash 12 is engaged by the fiexible wing part 25 of the clement 23, and the side bar 15 of the sash 13 is engaged by the fiexible wing part 3f) of the element 23. Thus, the iiexible wing part 25 on the element 23 urges the sash 12 toward the flexible wing part 3f? on the element'22 and the screws 34 render it possible to adjust the pressure exerted on the sash 12 by the fiexible wing parts 25 and 36 of the elements 23 and 22 respectively. Accordingly,

with the present construction the frictional resistance offered to vertical sliding movement of the sash 12 may be varied to assure properly holding the sash 12 in any desired open position and at the same time assure relatively easy movement of the sash 12.

The flexible wing part 25 or, the element 22 urges the sash 13 in a direction toward the fiexible wing part 30 on the element 23 and screws 34 identical to the screws 34 are provided on the jamb 17 for adjusting the force applied to the sash by the aforesaid iiexible wing parts. Hence, the sash 13 is supported on the casing 11 in the same manner as the sash 12.

Although the screws 34, 34 serve to limit the extent of flexing movement of the wing parts 3i) in directions toward their respective jambs, nevertheless, both sashes are free to shift in directions toward the respective flexible wing parts 25. ln fact, both of the wing parts 25 are constructed and arranged to allow sutiicient shifting movement of the sashcs to release the same from their respective wing parts 30. Therefore, either or both of the sashes may be readily removed from the window casing 11 when desired.

Referring now to the embodiment of the invention shown in Figure 4 ol the drawing, it will be noted that the window structure is identical to the one previously described with the exception of the combined sash guide and weatherstrip elements 22 and 23. The element 22 is located between the jamb i6 and the adjacent bars 14 of the two sashcs. This element is similar in construction to the element 22 except for the fact that the Wing parts are both identical to the wing part 3f) of the element 22.

The element 23' is positioned between the jamb 17 and the adjacent side bars 15 of the sashes. This element is also identical to thc element 23 previously described except for the fact that both wing parts are identical to the wing part 25 of the element 23. Hence, the same reference numerals are used in the construction shown in Figure to indicate corresponding parts. lt will also be noted from Figure 4 that the screws 34 instead of being secured to thhc jamb 17 are secured to the jamb 16 in the same manner as the screws 34. Thus, in the embodiment of the invention shown in Figure 4, the combined guides and weatherstrips are symmetrical with re! spect to the channel-shaped stop portions 24. With this exception the operation and structure of the window shown in Figure 4 is identical to the one shown in Figures 1 3 inclusive.

What we claim as our invention is:

l. In combination with a window assembly having spaced first and second side jamb members, First and second stops respectively secured to each jamb member in spaced relationship laterally of the jamb member, first and second weatherstrips respectively anchored on the first stops and having Flexible wing sections extending toward the second stops in lateral spaced relationship to the adjacent jamb members, the iiexibie wing section adjacent the first jamb member being biased to flex in a direction way from the first jamb member and the fiexible wing section adjacent the second jamb member being biased to flex in a direction toward the second jamb member, a sash positioned between the wing sections and having bars at opposite sides respectively engageable with the free edge portions of the wing sections, and nonyielding stop means acting on the outer side of the second wing section and adjustable in a. direction to urge the sash toward the first wing section and thereby placing the first wing section under tension.

2. The structure defined in claim l wherein the stop means has an abutment engageable with the second wing in opposed relationship to the sash and has a part secured to the second jamb for adjustment to flex the second wing section toward the first wing section, and wherein the sec- 0nd wing section has a clearance opening registering with the abutment and adapted to receive an adjusting tool.

3. The structure defined in claim l wherein the stop means comprises a screw having a threaded shank threadably engageable with the second jamb member and has a slotted head abutting the outer side of the second wing section adjacent the free edge of the latter, and wherein the second wing section has an opening registering with the slotted head for accommodating an adjusting tool and being of smaller diameter than said head.

4. The structure defined in claim l wherein the sash is carried solely by the fiexible wing sections of the weatherstrips and wherein the rst wing section has a fiexing movement in a direction toward the first jamb sufficient to disengage the sash from the wing section of the second weatherstrip upon shifting movement of the sash in a direction toward the rst jamb member.

5. The structure defined in claim l wherein the sash is slidable vertically relative to the jamb members and wherein the weatherstrips extend for substantially the full vertical travel of the sash.

6. The structure defined in claim 5 wherein the wing sections are shaped to provide inwardly opening recesses for respectively slidably receiving portions of adjacent side bars of the sash and wherein the wing section of the first weatherstrip has a exing movement toward the first jamb sufficient to release the sash from the recess formed by the wing section of the second weatherstrip.

7. In combination with a window assembly having spaced rst and second side jamb members, first and second stops respectively secured to the inner surface of cach jamb in spaced relationship laterally of the jamb member, a parting stop on thc inner surface of each jamb member substantially midway between the first and second stops, a first combined sash guide and weatherstrip having an outwardly opening channel intermediate opposite side edges anchored on the parting stop on the first jamb member and having flexible first and second wing sections extending lfrom opposite sides of the channel toward the stops on the first jamb member in spaced relation to the latter, the first flexible wing section being biased to flex in a direction toward the second jamb member and the second wing section being biased to flex in a direction toward the first jamb member, lirst and second sashes positioned between the jamb members at opposite sides of the parting stops and respectively slidably engaging the iirst and second wing sections, a second combined sash guide and weatherstrip supported between the second jamb and adjacent sides of the sashes and having rst and second flexible wing sections respectively engageable with the adjacent sides of the lirst and second sashes, the first wing section of the second sash guide and Weatherstrip being biased to flex toward the second jamb and the second wing section of the second sash guide and weatherstrip being biased to iieX toward the first jamb member, and nonyielding stop means respectively engageable with the outer surfaces of the second wing section of the first sash guide and weatherstrip and the rst wing section of the second sash guide and weatherstrip to limit flexing movement of the latter wing sections toward the adjacent jamb members, said stop means respectively mounted on the jamb members for adjustment in directions to vary the pressure applied to opposite sides of the sashes by said wing sections.

8. The structure defined in claim 7 wherein the second wing section of the rst sash guide and weatherstrip and the rst wing section of the second sash guide and weatherstrip have openings through which the stop means are accessible for adjustment.

9. The structure dened in claim 7 wherein the wing sections are shaped to provide inwardly opening recesses for respectively slidably receiving portions of adjacent sashes and wherein the rst wing section of the rst sash y guide and weatherstrip and the second wing section of the second sash guide and weatherstrip have a exing movement toward the adjacent jamb members suicient to release the sashes from the recesses formed by the second and iii-st wing sections of the first and second sash guides and weatherstrips respectively.

10. In a window structure a vertical side jamb having a parting stop projecting inwardly from the inner surface of the jamb between opposite sides thereof, a exible combined sash guide and weatherstrip having an outwardly opening channel-shaped portion intermediate opposite edges anchored on the parting stop and having first and second flexible sash engaging wing sections eX- tending in opposite directions from the anges of the channel-shaped portion in lateral spaced relation to the side jamb, the first wing section being biased to Hex in a direction away from the side jamb and the second wing section being biased to eX in a direction toward the side jamb, and a nonyielding stop supported by the side jamb in a position to abut the outer side of the second wing section adjacent the free edge thereof and limit the extent of liexing movement of the second wing section toward the side jamb, said stop being adjustably mounted on the side jamb for movement in directions to vary the position of the second wing section with respect to said side jamb.

References Cited in the tile of this patent UNITED STATES PATENTS Kreuger Jan. 20, 1942 

